Not to get serious, and I promise I'm not asking to be a jerk, but...
Why are you doing Wendy's ads now?
A) It's beneath you. Wendy's is not a company that needs your endorsement. Everyone knows about them, and you don't get any cred from being associated with their brand. I'd be very surprised if there weren't other (much worthier) advertisers lining up for live read spots on a very popular podcast.
You may not know this, but they are currently being boycotted for undermining farm workers' human rights. (see link)
Please take a moment to peruse that link. I don't want to be a bummer, but it would really turn me off of the show if you were aware of this and still chose to accept their ad money.